再生セルロース繊維の湿潤時の粘弾性 : 高分子レオロジー

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The relation between the fine structure of the fibers and their mechanical properties is much interesting. Depending on the utility, there are many chances for the fibers to be placed in high temperature and in the wet state. To obtain a fundamental knowledge of this, it is necessary to do the measurement of the viscoelastic behavior of the fibers in the wet state at various temperatures. There are many researches of Clark etc., on the physical properties of the regenerated cellulose fibers in the wet state at various temperatures, and that of Wakeham etc., on the relation between tension and temperature. In this research the mesurement has been perfomed in water at low frequency by varying temperature and the dependency of longitudinal dynamic modulus, longitudinal viscosity, and tan delta with temperature and their relation with the fine structure of the fibers have been investigated. Fortisan, bemberg, viscose rayon, high tenacity rayon, cellophane, and gel-cellophane were used as samples. The aggregate state of these samples were estimated by Maeda's method and to determine the relation between the aggregate state and the orientation of the part, which has much influence on the effect of mechanical properties, the measurement of swelling and contraction was performed. When the relation between the orientation and the aggregate state is determined, it is observed that Fortisan possesses a good orientation in the state of high order and high tenacity rayon possesses orientation in low order.
社団法人日本材料学会の論文
1960-04-15

再生セルロース繊維の湿潤時の粘弾性 : 高分子レオロジー

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